curl --request POST \
  --url https://api.otpbay.com/v1/messages/sms \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "to": "+447700900123",
  "from": "Acme",
  "body": "Your Acme order 1042 has shipped.",
  "callback": "https://example.com/webhooks/otpbay",
  "metadata": {
    "order_id": "1042"
  }
}
'

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    to: '+447700900123',
    from: 'Acme',
    body: JSON.stringify('Your Acme order 1042 has shipped.'),
    callback: 'https://example.com/webhooks/otpbay',
    metadata: {order_id: '1042'}
  })
};

fetch('https://api.otpbay.com/v1/messages/sms', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://api.otpbay.com/v1/messages/sms"

payload = {
    "to": "+447700900123",
    "from": "Acme",
    "body": "Your Acme order 1042 has shipped.",
    "callback": "https://example.com/webhooks/otpbay",
    "metadata": { "order_id": "1042" }
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.otpbay.com/v1/messages/sms",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'to' => '+447700900123',
    'from' => 'Acme',
    'body' => 'Your Acme order 1042 has shipped.',
    'callback' => 'https://example.com/webhooks/otpbay',
    'metadata' => [
        'order_id' => '1042'
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.otpbay.com/v1/messages/sms"

	payload := strings.NewReader("{\n  \"to\": \"+447700900123\",\n  \"from\": \"Acme\",\n  \"body\": \"Your Acme order 1042 has shipped.\",\n  \"callback\": \"https://example.com/webhooks/otpbay\",\n  \"metadata\": {\n    \"order_id\": \"1042\"\n  }\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.otpbay.com/v1/messages/sms")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"to\": \"+447700900123\",\n  \"from\": \"Acme\",\n  \"body\": \"Your Acme order 1042 has shipped.\",\n  \"callback\": \"https://example.com/webhooks/otpbay\",\n  \"metadata\": {\n    \"order_id\": \"1042\"\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.otpbay.com/v1/messages/sms")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"to\": \"+447700900123\",\n  \"from\": \"Acme\",\n  \"body\": \"Your Acme order 1042 has shipped.\",\n  \"callback\": \"https://example.com/webhooks/otpbay\",\n  \"metadata\": {\n    \"order_id\": \"1042\"\n  }\n}"

response = http.request(request)
puts response.read_body

using RestSharp;


var options = new RestClientOptions("https://api.otpbay.com/v1/messages/sms");
var client = new RestClient(options);
var request = new RestRequest("");
request.AddHeader("Authorization", "Bearer <token>");
request.AddJsonBody("{\n  \"to\": \"+447700900123\",\n  \"from\": \"Acme\",\n  \"body\": \"Your Acme order 1042 has shipped.\",\n  \"callback\": \"https://example.com/webhooks/otpbay\",\n  \"metadata\": {\n    \"order_id\": \"1042\"\n  }\n}", false);
var response = await client.PostAsync(request);

Console.WriteLine("{0}", response.Content);

{
  "sid": "SM6650c4b7c2d3e4f5a6b7c8d9",
  "status": "queued",
  "to": "+447700900123",
  "from": "Acme",
  "body": "Your Acme order 1042 has shipped.",
  "sms_segments": 1,
  "cost": "0.04",
  "metadata": {
    "order_id": "1042"
  },
  "date_created": "2026-09-26T10:20:11.302Z",
  "processed_at": null
}

{
  "error": {
    "code": "INVALID_JSON",
    "message": "Invalid JSON body"
  }
}

{
  "error": {
    "code": "INVALID_API_KEY",
    "message": "Invalid API key."
  }
}

{
  "error": {
    "code": "INSUFFICIENT_BALANCE",
    "message": "Insufficient balance for this SMS destination."
  }
}

{
  "error": {
    "code": "CHANNEL_DISABLED",
    "message": "SMS is turned off for this project."
  }
}

{
  "error": {
    "code": "SENDER_ID_NOT_APPROVED",
    "message": "\"Acme\" is not an approved sender ID for this project."
  }
}

{
  "error": {
    "code": "QUEUE_UNAVAILABLE",
    "message": "SMS saved but queue is unavailable — try again later or check Redis."
  }
}